Temperature in San Francisco Line Chart
This visualization shows a week of temperature readings in San Francisco as a smooth maroon area chart, with time on the x-axis and temperature on the y-axis. The chart uses d3.scaleTime and d3.scaleLinear to map data to SVG coordinates, d3.area with a curveBasis interpolation to generate the filled path, and d3.axisBottom and d3.axisLeft with gridlines for reference. Data is loaded from a CSV file via d3.csv, with timestamps parsed as dates.